| Identification | More | [Name]
2-Methyl-2-propyl-1,3-propanediol | [CAS]
78-26-2 | [Synonyms]
2,2-BIS(HYDROXYMETHYL)PENTANE
2,2-DIMETHYLOL-PENTANE
2-METHYL-2-N-PROPYL-1,3-PROPANEDIOL
2-METHYL-2-PROPYL-1,3-PROPANEDIOL
2-methyl-2-propyl-3-propanediol
3-Propanediol,2-methyl-2-propyl-1
2-Methyl-2-Propylpropan-1,3-Diol
Dimethylolpentane,97%
2-methyl-2-propylpropane-1,3-diol
2-METHYL-2-PROPYL-1,3-PROPANDIOL
Carisoprodol intermediate H
NSC 26233
1,3-Propanediol, 2-methyl-2-propyl-
2-methyl-2-propyl-1,3-propandiol (intermediate of meprobamate or carisoprodol)
DURANOL
2-METHYL-2-PROPYL-1,3-PROPANEDIOL [FOR CARISOPRODOL]
methyl-2-propyl-2-propanediol-1,3
2-METHYL-2-PROPYL-1,3-PROPANEDIOL,99%
2-Propyl-2-methyl-1,3-propanediol
Pentane-2,2-dimethanol | [EINECS(EC#)]
201-099-5 | [Molecular Formula]
C7H16O2 | [MDL Number]
MFCD00004696 | [Molecular Weight]
132.2 | [MOL File]
78-26-2.mol |
| Questions And Answer | Back Directory | [Synthesis]
2-Methyl-2-pentenal was hydrogenated at 100°C and 1.3-1.5MPa with a yield of 80%. After obtaining 2-methylpentenal, it was added to 36% formaldehyde, and the reaction was carried out at room temperature. Sodium hydroxide solution was added dropwise. The reaction was exothermic, and the temperature was naturally raised to 70 °C, then heated to 90 °C, added for 1 h, cooled to 60 °C and left to separate layers. The upper layer was washed with water, the washings were combined with the lower layer, and extracted with benzene. The extract and the upper layer were combined, and benzene was recovered by distillation, followed by distillation under reduced pressure to collect a fraction at 160°C (14.7kPa), which was 2-methyl-2-propyl-1,3-propanediol,yield 93%. |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R36:Irritating to the eyes.
R22:Harmful if swallowed. | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S39:Wear eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [WGK Germany ]
1
| [RTECS ]
TY9386000 | [HS Code ]
2905399590 |
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